JWCN_V1_N4_RP1 Swetha Priyanka G. Rajesh Journal On Wireless Communication Networks 2320 - 2351 1 4 5 11 Congestion, Deadlock, Highly Adaptive Routing Algorithm, Latency, Live lock, Networks-on-chip When the Message latency increases in Networks-On-Chip Performance of the channel decreases due to congestion. In Mesh topology, minimal methods can distribute messages over two directions at each switch, but in high traffic loads this methods are inefficient. We present a non-minimal methods can overcome this blocking problem in high traffic loads and reduce the waiting time of messages by delivering them via alternative paths called HARAQ.To avoid creating cycles in network, the algorithm define all allowed turns including 180-degree turns on a single channel. To select a less congestion path from output channel to the destination region based on local and global information in the learning method. January - March 2013 Copyright © 2013 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=2188